Please make sure you have these dependencies first before building.
granite
gtk+-3.0
gtksourceview-3.0
libjson-glib
libgee-0.8
meson
vala
Simply clone this repo, then:
meson build && cd build
meson configure -Dprefix=/usr
sudo ninja install
Notes are stored in ~/.local/share/com.github.lainsce.notejot/